The K3 League 2007 was the first season of the third highest South Korean football league under this name. The game was played in 2 rounds. The two best teams in their round qualified for the championship. The first champions became Seoul United FC .
Qualification as lap champion for the championship round
Qualification as runner-up for the championship round
Championship games
In the championship games, the best and the second best of the first and second round took part. First, the four teams played in the semi-finals of the championship to qualify for the final. The two winners of the semi-finals played in the final. The winner was K3 League champion. The games were played between November 10th and 24th.